Given height of the prism = 8 cm .........(1) Area of the base, ⇒
b
4
√4a2−b2 (here a = 5, b = 6)
6
4
√4(5)2−62
3
2
√64=12 .......(2) Volume of the part = Area of the base x height of the prism Substitute equation (1) and (2) in the above equation Volume of the part = 12 x 8 = 96 cm Hence, option D is the correct answer.